Re: 66 Princeton Reverb
- From: J.P. <jpasano@xxxxxxxxxxx>
- Date: Fri, 18 Jan 2008 12:52:29 -0600
On Fri, 18 Jan 2008 12:22:28 -0500, "Phil S."
<psymonds_no_spam@xxxxxxxxxxx> wrote:
Black to fuse, then off switch then ac tranny wire
"Rex Hunt" <huntr@xxxxxxxxxxxxxx> wrote in message
news:7L3kj.64979$eY.27743@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Hi all,
We were cleaning out my wife's old house prior to selling it when we ran
across her late ex husband's 1966 Princeton Reverb amp in the garage
rafters. The speaker was eaten by rodents but the electronics were clean.
I went to an electronics tech school right out of high school in 1968 and
learned a lot about tubes so I figured I would see what I could do with
it. I used a dim bulb tester and it checked out ok. My question to you
all is about the ground switch/death cap. I have read that when
installing a three wire power cord that it should be removed totally and
also read that the cap should be left in but the switch replaced with an
on-off-on switch (and placed after the fuse). My house is older and not
all the outlets are grounded - they are all 3 prong, just not grounded.
Seems to me the on-off-on switch is the way to go. Any opinions?
Rex
Remove the death cap. Other advice is bad advice. Make sure the ground
wire gets its own lug and bolt to the chassis, close to where it enters.
Fuse the hot side of the a/c line (you already know this). You need a
simple SPST on-off switch, but it should work with whatever is already
there.
Use an outlet that has a working redundant ground, even if the ground and
neutral happen to be wired together back the breaker box. I realize this
defeats the redundancy, but it is better than nothing on the ground lug.
Under no circumstances should the amp be powered up without a load on the
output. You need either the proper ohm speaker or a dummy load. No load =
likely output transformer failure and quite possibly other collateral
damage. That would be a shame on an amp like this. I think you have a
lucky score here, even though the circumstances of acquisition are probably
bitter sweet.
White to other ac tranny wire
Green to bolted and soldered (if you can do it - 100 plus watts)
terminal. Remove deatch cap. you can do an XY cap of the right voltage
and rating from the white wire to ground. Some people use them from
black to white wire also. But I do not. I think that death cap was
rated at .47 or .047. Get a cheap wall plug tester at Wally World for
$4 and make sure the wall plug is grounded. You can likely get by in
an ungrounded one but I don't advise it.
An if you don't want that old piece of junk, you can send it to
me...lol
.
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